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refactor: `@vitest/browser` to not contain V8 coverage logic (#10808)
authored by
Ari Perkkiö
and committed by
GitHub
(Jul 21, 2026, 2:18 PM +0300)
0f8e63f5
61585cc9
+32
-19
-16
packages/browser/src/node/commands/coverage.ts
-16
packages/browser/src/node/commands/coverage.ts
···
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import type { BrowserCommand } from 'vitest/node'
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import type { BrowserServerCDPHandler } from '../cdp'
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export const _startV8Coverage: BrowserCommand<[]> = async (context) => {
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const session: BrowserServerCDPHandler = await context.__ensureCDPHandler()
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await session.send('Profiler.enable')
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await session.send('Profiler.startPreciseCoverage', {
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callCount: true,
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detailed: true,
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})
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}
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export const _takeV8Coverage: BrowserCommand<[]> = async (context) => {
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const session: BrowserServerCDPHandler = await context.__ensureCDPHandler()
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return session.send('Profiler.takePreciseCoverage')
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}
-3
packages/browser/src/node/commands/index.ts
-3
packages/browser/src/node/commands/index.ts
···
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import { _startV8Coverage, _takeV8Coverage } from './coverage'
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import {
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_fileInfo,
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readFile,
···
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removeFile: removeFile as typeof removeFile,
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writeFile: writeFile as typeof writeFile,
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// private commands
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__vitest_startV8Coverage: _startV8Coverage as typeof _startV8Coverage,
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__vitest_takeV8Coverage: _takeV8Coverage as typeof _takeV8Coverage,
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__vitest_markTrace: _markTrace as typeof _markTrace,
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__vitest_groupTraceStart: _groupTraceStart as typeof _groupTraceStart,
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__vitest_groupTraceEnd: _groupTraceEnd as typeof _groupTraceEnd,
+21
packages/coverage-v8/src/commands.ts
+21
packages/coverage-v8/src/commands.ts
···
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import type { CDPSession } from '@vitest/browser-playwright'
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import type { BrowserCommand, BrowserCommandContext } from 'vitest/node'
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export const commands: Record<string, BrowserCommand> = {
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startV8Coverage,
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takeV8Coverage,
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}
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async function startV8Coverage(context: BrowserCommandContext): Promise<void> {
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const session: CDPSession = await context.__ensureCDPHandler()
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await session.send('Profiler.enable')
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await session.send('Profiler.startPreciseCoverage', {
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callCount: true,
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detailed: true,
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})
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}
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async function takeV8Coverage(context: BrowserCommandContext): Promise<any> {
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const session: CDPSession = await context.__ensureCDPHandler()
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return session.send('Profiler.takePreciseCoverage')
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}
+9
packages/coverage-v8/src/provider.ts
+9
packages/coverage-v8/src/provider.ts
···
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import c from 'tinyrainbow'
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import { BaseCoverageProvider, parseAstAsync } from 'vitest/node'
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import { version } from '../package.json' with { type: 'json' }
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import { commands } from './commands'
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export interface ScriptCoverageWithOffset extends Profiler.ScriptCoverage {
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startOffset: number
···
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initialize(ctx: Vitest): void {
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this._initialize(ctx)
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for (const project of ctx.projects) {
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if (project.isBrowserEnabled() && project.browser) {
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for (const [name, command] of Object.entries(commands)) {
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project.browser.registerCommand(`__vitest_${name}` as any, command)
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}
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}
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}
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if (this.options.autoAttachSubprocess) {
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const isAnyThreadsPools = ctx.projects.some(p => p.config.pool === 'threads' || p.config.pool === 'vmThreads')
+1
test/coverage-test/test/custom-provider.custom.test.ts
+1
test/coverage-test/test/custom-provider.custom.test.ts